CN203637950U - Rear coaming structure - Google Patents

Abstract

The utility model discloses a rear panel structure, which comprises a rear panel inner panel and a rear panel outer panel which are welded together, the side surfaces of the rear panel inner panel and the rear panel outer panel are connected by connecting plates, and the rear panel inner The inner space formed by the board, the rear wall outer board and the connecting board is a through C-shaped cavity. There is a C-shaped cavity in the rear wall assembly, which improves the rigidity and strength of the assembly; at the same time, the rear wall is divided into three parts and welded together to reduce the mold cost; at the same time, the rear anti-collision beam is installed with a reinforcement plate and the rear wall There is a cavity between the inner panels, which improves the installation structural strength of the anti-collision beam after installation; finally, through the above improvements, not only the installation is more convenient, but also the requirement of light weight is realized.

Description

A back wall structure

technical field

The utility model relates to a body-in-white part of an automobile, in particular to a back panel structure.

Background technique

Today's car consumers pay more and more attention to the safety performance of cars, and the body-in-white structure, which plays the main role of energy-absorbing protection in the collision process, is particularly important. Improving the safety performance of the body-in-white structure makes it have sufficient rigidity and strength. More attention has been paid to the tail panel assembly, which is an important part of the body-in-white. It mainly closes the rear space of the body and forms a trunk with environmental parts such as the floor and side walls. It requires sufficient rigidity and strength during design and manufacture. , and contribute to the overall crash performance goals of the body-in-white. At the same time, the tail panel also plays an important role in the rear crash test that evaluates the safety performance level of new cars. Moreover, lightweight is the trend of modern automobile manufacturing industry.

Utility model content

In view of the deficiencies in the background technology, the purpose of this utility model is to provide a back wall structure, which can not only meet the strength and rigidity performance requirements required by the assembly, but also provide a reliable installation environment and take into account the light weight index.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a back wall structure, including a back wall inner plate and a rear wall outer plate welded together, characterized in that: the rear wall inner plate and the rear wall outer The side surfaces of the plates are connected by connecting plates, and the internal space formed by the rear wall inner panel, the rear wall outer panel and the connecting plates is a through C-shaped cavity.

Preferably, a reinforced version of the rear door lock is provided in the cavity, and the reinforced version of the rear door lock is welded to the middle of the inner panel of the rear wall.

Preferably, the cavity is symmetrically provided with a rear anti-collision beam installation reinforcement plate, the rear anti-collision beam installation reinforcement plate is welded to the rear wall inner panel, and the rear wall inner panel and the rear anti-collision beam installation reinforcement plate There is a cavity between them.

Preferably, the rear wall inner panel includes a straight line portion and a side wall portion with corners; both ends of the straight line portion are connected to the side wall portion; one side of the side wall portion is connected to the straight line portion, and the other One side is connected with the connecting plate.

The beneficial effects of the utility model are: the back wall assembly is a C-shaped cavity, which improves the stiffness and strength of the assembly; at the same time, the inside of the back wall is divided into three parts and welded to reduce the mold cost; A cavity is provided between the reinforcement plate for the installation of the impact beam and the inner panel of the rear wall, which improves the installation structural strength of the anti-collision beam after installation; finally, through the above improvements, not only the installation is more convenient, but also the demand for light weight is realized.

Description of drawings

Fig. 1 is a schematic diagram of the front view of the utility model

Fig. 2 is the explosion schematic diagram of the utility model

Fig. 3 is a schematic diagram of A-A section in Fig. 1

Figure 4 is a schematic diagram of the B-B section in Figure 1

Fig. 5 is a schematic structural view of the rear wall inner panel of the utility model

Detailed ways

As shown in Figures 1 to 4, the black thick solid line in Figure 1 is the schematic outline of the C-shaped cavity; a rear wall structure for shooting in the utility model includes a rear wall inner panel 1 and a rear wall outer Plate 2, the sides of the rear wall inner panel 1 and the rear wall outer panel 2 are connected by a connecting plate 3, the end faces of the rear wall inner panel 1 and the rear wall outer panel 2 are welded and connected, and the rear wall The inner space formed by the inner panel 1 , the rear wall outer panel 2 and the connecting panel 3 is a through C-shaped cavity. A reinforced version 4 of the back door lock is arranged in the cavity, and the reinforced version 4 of the back door lock is welded to the middle part of the inner panel 1 of the rear wall. The rear anti-collision beam installation reinforcing plate 5 is symmetrically arranged in the cavity, and the rear anti-collision beam installation reinforcing plate 5 is welded on the rear wall inner panel 1, and the rear wall inner panel 1 and the rear anti-collision beam are installed and strengthened. A mold cavity is provided between the plates 5, and the mold cavity can be formed by welding a U-shaped rear anti-collision beam installation reinforcement plate to the inner panel of the rear wall. The rear wall inner panel 1 includes a straight line portion 1.1 and a side wall portion 1.2 with a corner; both ends of the straight line portion 1.1 are connected with a side wall portion 1.2; one side of the side wall portion 1.2 is connected to the straight line portion 1.1 connection, the other side is connected with the connecting plate 3.

First, weld the three parts of the inner panel of the rear panel into the inner panel of the rear panel, weld the reinforcement plate of the rear door lock to the middle of the inner panel of the rear panel, and weld the reinforcing plate of the rear anti-collision beam symmetrically to the rear door lock The buckle reinforcement plate is welded on both sides to form the rear wall inner panel assembly; then the rear wall outer panel and the connecting plate are welded to form the rear wall outer panel assembly; finally the rear wall inner panel assembly and the rear wall outer panel assembly are combined Weld it into the rear panel assembly, and attach the rear panel assembly to the rear floor of the lower body.

The inside of the rear wall assembly is a through C-shaped cavity, which increases the overall rigidity and strength, and also brings lightweight benefits. Moreover, a mold cavity is provided between the reinforced version of the rear anti-collision beam and the interior of the rear wall, which increases the strength of the installation structure with the rear anti-collision beam.

Claims (4)

1. a rear end panel structure, comprise back wall inner panel and the rear wall outer plate of weld together, it is characterized in that: the side of described back wall inner panel and rear wall outer plate is connected by connecting panel, and the inner space that described back wall inner panel, rear wall outer plate and connecting panel form is the C die cavity body connecting.

2. a kind of rear end panel structure according to claim 1, is characterized in that: in described cavity, be provided with back door snap close and strengthen version, described back door snap close is strengthened version and is welded on described back wall inner panel middle part.

3. a kind of rear end panel structure according to claim 1, it is characterized in that: in described cavity, be arranged with back buffer beam brace panel is installed, described back buffer beam is installed brace panel and is welded on described back wall inner panel, and is provided with die cavity between back wall inner panel and back buffer beam installation brace panel.

4. a kind of rear end panel structure according to claim 1, is characterized in that: described back wall inner panel comprises line part and is provided with the side round part at turning; Described line part two ends are all connected with side round part; One side of described side round part is connected with described line part, and opposite side is connected with described connecting panel.

Images